JPH0352810B2 - - Google Patents
Info
- Publication number
- JPH0352810B2 JPH0352810B2 JP58137916A JP13791683A JPH0352810B2 JP H0352810 B2 JPH0352810 B2 JP H0352810B2 JP 58137916 A JP58137916 A JP 58137916A JP 13791683 A JP13791683 A JP 13791683A JP H0352810 B2 JPH0352810 B2 JP H0352810B2
- Authority
- JP
- Japan
- Prior art keywords
- stator
- drive unit
- measuring device
- drive shaft
- mounting surface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000005259 measurement Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
- G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
- G01D5/347—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
- G01D5/3473—Circular or rotary encoders
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
- Optical Transform (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
- Body Structure For Vehicles (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は特許請求の範囲第１項の上部概念に記
載した測角装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an angle measuring device according to the preamble of claim 1.
目盛板を支承する個有の軸承がなく、別の軸
承、例えばモーターの駆動軸に取付ける様に定め
られている上記の如き測角装置は、目盛板のため
の個有の軸と軸承を固定子に備えている測角装置
に対して、軸承と軸および軸を別の駆動軸に接続
するための軸継手が除外されることおよび固定子
（容器）を直接固定することによりコストが廉価
になりそして構造が簡単になるという特徴を持つ
ている。更に連結部が駆動軸の角加速度および軸
承の摩擦モーメントのため捩れることがなくな
り、最後に測角装置の全体の長さが著しく短縮さ
れる。しかし使用者は、この様な測角装置を組立
てる際に、調整作業を実施しなければならず、こ
の作業は使用されている角度目盛りの細かさに従
つて、高価な装置、資格を有する人および多大な
時間の浪費を必要とするのが欠点である。 An angle measuring device such as the one described above, which does not have a separate bearing to support the scale plate and is designed to be attached to another bearing, such as the drive shaft of a motor, fixes the separate shaft and bearing for the scale plate. The cost is reduced by eliminating the bearing, shaft, and shaft coupling for connecting the shaft to another drive shaft, and directly fixing the stator (container) to the angle measuring device installed in the child. It has the characteristics of being simple and having a simple structure. Furthermore, the connection is no longer twisted due to the angular acceleration of the drive shaft and the frictional moments of the bearing, and finally the overall length of the angle measuring device is significantly shortened. However, when assembling such an angle measurement device, the user must carry out adjustment work, which, depending on the fineness of the angle scale used, requires expensive equipment and qualified personnel. The disadvantage is that it requires a large amount of time.
２部分に分れた固定子を有する測角装置が公知
になつており、この装置は、組立てに際して先
づ、例えば照明装置と走査板とを含む固定子下方
部分が一つの装置を用い、別の駆動軸に中心位置
を合致させられ、それから目盛板が取付けられた
接続ボスが駆動軸に嵌め込まれ締め付けられ、そ
れから光電素子とインパルス形成段を有する固定
子上方部分が組立てられ、最後に電気導線を有す
る容器蓋が組立てられる。光電素子は固定子下方
部分に対して正確な位置に配置されていなければ
ならないから、組立ての際には調整過程が必要で
あり或いは取付ピン又は類似の装置を使用するた
めの支出を考慮しておかなければならない。固定
子下方部分と固定子上方部分との間の電気導線は
可撓又は差込み可能な如く配置されていなければ
ならないが、そのことは何れにしても測定誤差を
惹起する可能性を持つている。 Angular measuring devices with a stator divided into two parts are known, in which during assembly the lower part of the stator, which includes, for example, the illumination device and the scanning plate, is first used in one device and then in another. The center position of the stator is aligned with the drive shaft, then the connecting boss with the scale plate is fitted onto the drive shaft and tightened, then the upper part of the stator with the photoelectric element and the impulse forming stage is assembled, and finally the electrical conductor A container lid having the following is assembled. Since the photoelectric element must be placed in a precise position relative to the lower portion of the stator, an adjustment process is necessary during assembly or the expense of using mounting pins or similar devices is not considered. I have to keep it. The electrical conductors between the lower part of the stator and the upper part of the stator must be arranged in a flexible or pluggable manner, which in any case can lead to measurement errors.
更に三日月形に形成された固定子を有する測角
装置が公知になつており、この装置では、目盛板
に取付けられた接続ボスが先づ別の駆動軸に固定
され、それから固定子全体が取付け面上に載せら
れそして駆動軸に対して横方向に推移させられ、
走査単位が該目盛板を包括する所まで推移させら
れ、最後に、駆動軸又は接続ボスに関して半径方
向および切線方向に走査単位を正確に整列させる
ための調整過程が行われなければならない。 Furthermore, angle measuring devices with a crescent-shaped stator are known, in which the connecting bosses attached to the scale plate are first fastened to another drive shaft, and then the entire stator is mounted. placed on a surface and displaced transversely to the drive shaft;
The scanning unit is moved up to encompass the scale plate, and finally an adjustment process must be carried out to precisely align the scanning unit radially and tangentially with respect to the drive shaft or connecting boss.
本発明の目的は上記した如き測角装置におい
て、駆動単位の取付け面上に固定子を取付ける際
に、固定子が調整作業を必要とせず正確に取付け
られることを可能ならしめることである。 SUMMARY OF THE INVENTION An object of the present invention is to enable the stator to be accurately mounted on the mounting surface of the drive unit in the above-mentioned angle measuring device without requiring any adjustment work.
上記の目的は本発明により特許請求の範囲第１
項に記載した特徴ある構成により達成される。 The above object is achieved by the present invention as claimed in claim 1.
This is achieved by the characteristic configuration described in Section 1.
本発明によつて得られる効果は、提案された処
置により駆動軸又は接続ボスに関する固定子の自
動的な調整が、駆動単位の取付面に取付ける際に
行われ、斯くしてこの様な測角装置の組立てが使
用者自身により簡単に、費用がかかる調整装置を
必要とせず、調整のために時間を浪費することな
くそして資格ある人によらずに実施可能であると
いうことである。 The effect achieved by the invention is that, with the proposed measure, an automatic adjustment of the stator with respect to the drive shaft or connection boss takes place when mounting it on the mounting surface of the drive unit, thus making it possible to The advantage is that the assembly of the device can be easily carried out by the user himself, without the need for expensive adjustment devices, without wasting time for adjustment and without the use of qualified personnel.
本発明の特徴ある変形は実施態様項に記載され
ている。 Characteristic variants of the invention are described in the embodiment section.
本発明の一つの実施例が添附図により詳細に説
明される。 One embodiment of the invention will be explained in detail with reference to the accompanying drawings.
添附第１ａ〜１ｃ図には、１つの正面図および
２つの断面図により測角装置１が示され、この測
角装置は例えばモーターの如き１つの駆動単位２
に組付けられている。測角装置１は、接続ボス４
を有する目盛板３を所有し、この接続ボスは、測
角装置１を駆動単位２の取付面５に組付けるた
め、駆動単位２の駆動軸６に嵌め込まれそして締
付ねじ７により固定される。測角装置１は更に固
定子８の形態の容器を所有し、この容器の内部に
は、ランプ１０、コンデンサー１１、走査板１２
および光電素子１３を有する走査単位９が配置さ
れ、そして目盛板３の角度目盛を公知の態様で走
査する。光電素子１３並びに光電素子１３から発
信される電気的走査信号の図示されていない評価
装置は板１４に配置されており、この板はねじ１
５により固定子８に固定されている。 1a to 1c, an angle-measuring device 1 is shown in one front view and in two sectional views, the angle-measuring device 1 comprising a drive unit 2, such as a motor, for example.
It is assembled into. The angle measuring device 1 is connected to a connecting boss 4
The connecting boss is fitted onto the drive shaft 6 of the drive unit 2 and fixed by a tightening screw 7 in order to assemble the angle measuring device 1 to the mounting surface 5 of the drive unit 2. . The angle measuring device 1 further has a container in the form of a stator 8, inside which a lamp 10, a condenser 11 and a scanning plate 12 are installed.
A scanning unit 9 with a photoelectric element 13 and a photoelectric element 13 is arranged and scans the angular graduation of the scale plate 3 in a known manner. The photoelectric element 13 and a not-shown evaluation device for the electrical scanning signal emitted by the photoelectric element 13 are arranged on a plate 14, which is connected to the screw 1.
5 to the stator 8.
目盛板３に取付けられた接続ボス４は固定子８
に支承されているのではなく、駆動軸６の図示さ
れていない軸承により駆動単位２に支承されてい
るから、固定子８を駆動軸６又は接続ス４に対し
て正確に付設するため、固定子８を駆動単位２の
取付面５に組付ける際、本発明により取付面５に
は駆動軸６に対して同芯的な芯合わせ輪帯１６が
設けられており、該輪帯はＵ字形に配置されてい
る固定子８の１つの衝当て面１７′および２つの
嵌合面１７″と協働する。固定子８は目盛板３の
外側に位置する如く取付面５に載せられそして次
に駆動軸６に対して半径方向に、嵌合面１７″に
案内されながら固定子８の衝当て面１７′が取付
け面５の芯合わせ輪帯１６に衝当たるまで推移さ
せられ、そしてその位置にねじ１８によつて固定
される。この提案された処置によつて調整過程は
もはや必要でなくなる。 The connection boss 4 attached to the scale plate 3 is connected to the stator 8
Since the stator 8 is not supported on the drive shaft 6 but is supported on the drive unit 2 by a shaft bearing (not shown) of the drive shaft 6, in order to accurately attach the stator 8 to the drive shaft 6 or the connecting shaft 4, it is necessary to fix it. When assembling the child 8 to the mounting surface 5 of the drive unit 2, according to the invention, the mounting surface 5 is provided with a centering ring 16 concentric with the drive shaft 6, which ring is U-shaped. The stator 8 is placed on the mounting surface 5 so as to be located on the outside of the scale plate 3 and then Then, the stator 8 is moved in the radial direction with respect to the drive shaft 6 while being guided by the fitting surface 17'' until the abutment surface 17' of the stator 8 abuts against the centering ring 16 of the mounting surface 5, and at that position. is fixed by screws 18. With this proposed measure, an adjustment process is no longer necessary.
図示されていないが固定子の衝当て面はＶ字形
に形成することも可能である。更に固定子の衝当
て面を取付け面の芯合わせ輪帯に押付ける押付け
手段、例えば芯合わせ輪帯に抱き付くばねを設け
ることも可能である。平らな押付面を有する固定
ねじ１８の代りに沈頭ねじを用いることも可能で
あり、この際沈頭ねじが固定子の内部に沈む状態
が取付け面のねじ孔の配置によつて僅かに置き違
えられており、斯くして沈頭ねじの頭部は孔の壁
の一方に接触して横方向の力を発生し、この力は
固定子の衝当て面が取付け面の芯合わせ輪帯に確
実に接触していることを保証する。 Although not shown, the abutment surface of the stator can also be formed in a V-shape. Furthermore, it is also possible to provide pressing means for pressing the abutment surface of the stator against the centering ring of the mounting surface, for example a spring that hugs the centering ring. It is also possible to use a sunken head screw instead of the fixing screw 18 having a flat pressing surface, and in this case, the state where the sunken head screw sinks into the interior of the stator can be slightly reduced by the arrangement of the screw holes on the mounting surface. The head of the sinking screw thus contacts one of the walls of the hole and generates a lateral force, which is caused by the impact surface of the stator hitting the centering ring of the mounting surface. Ensure that contact is made.
第１ａ図は本発明による測角装置の第１ｂ図の
Ｃ−Ｃ視による平面図、第１ｂ図は第１ａ図のＡ
−Ａ線に沿つた断面図、第１ｃ図は第１ａ図のＢ
−Ｂ線に沿つた断面図である。
図において、４……接続ボス、５……取付け
面、６……駆動軸、８……固定子、１６……芯合
わせ輪帝、１７′……衝当て面、１７″……嵌合
面。
FIG. 1a is a plan view of the angle measuring device according to the present invention taken along line C-C in FIG. 1b, and FIG.
- A cross-sectional view along line A, Figure 1c is B of Figure 1a.
- It is a sectional view along the B line. In the figure, 4...Connection boss, 5...Mounting surface, 6...Drive shaft, 8...Stator, 16...Centering ring, 17'...Abutting surface, 17''...Fitting surface .
Claims (1)
動軸６上に嵌合し且つ固定された接続ボス４の駆
動軸に直交する端面上に取り付けられた角度目盛
りを備えた円板３を有し、そして円板３、駆動軸
６、接続ボス４をそれらの回転の邪魔にならない
ように取り囲んでいる固定子８を有し、そして円
板３は測定値を得るため１つの走査単位９により
走査される、外部の回転駆動単位２に取付けられ
た測角装置において、固定子８は固定要素１８に
より回転駆動単位２の正面の取り付け面５に取り
付けられていること、円板３の目盛りから一定の
距離に付設された走査単位９は、ほぼリング状の
固定子８に固定されていることおよび固定子８は
回転駆動単位２の正面５に取り付けられる面上
に、回転軸６に直交する方向にＵ字形またはＶ字
形の切り欠き部分１７′又は１７″を所有し、この
部分は円筒形の芯合わせ輪帯１６に遊隙なく接触
し、その際芯合わせ輪帯１６は回転駆動単位２の
正面の取付け面５上に駆動軸６に対して同芯的に
設けられていることを特徴とする測角装置。 ２ 固定子の衝当て面を駆動単位の取付け面の芯
合わせ輪帯に押し付ける押付け手段が設けられて
いることを特徴とする、特許請求の範囲１に記載
の測角装置。 ３ 押付け手段は芯合わせ輪帯に抱き付くばねに
より形成されていることを特徴とする、特許請求
の範囲２に記載の測角装置。 ４ 押付け手段は固定子を駆動単位の取付け面に
取付けるための沈頭ねじにより形成され、該沈頭
ねじが固定子の内部に沈む状態が取付け面のねじ
孔の配置によつて僅かに置き違えられていること
を特徴とする、特許請求の範囲２に記載の測角装
置。Claims: 1. A circle with an angular scale mounted on the end face perpendicular to the drive axis of a connecting boss 4 that fits onto and is fixed on the drive axis 6 of a rotary drive unit 2, for example one motor. It has a plate 3 and a stator 8 surrounding the disk 3, the drive shaft 6 and the connecting boss 4 so as not to interfere with their rotation, and the disk 3 has one In the angle measurement device mounted on the external rotary drive unit 2, which is scanned by the scanning unit 9, the stator 8 is attached to the front mounting surface 5 of the rotary drive unit 2 by means of a fixing element 18; The scanning unit 9 attached at a certain distance from the scale 3 is fixed to a substantially ring-shaped stator 8, and the stator 8 has a rotation axis on the surface attached to the front face 5 of the rotary drive unit 2. 6 has a U-shaped or V-shaped cut-out part 17' or 17'', which contacts the cylindrical centering ring 16 without play, with the centering ring 16 An angle measuring device characterized in that it is provided concentrically with respect to the drive shaft 6 on the front mounting surface 5 of the rotary drive unit 2. 2. The abutting surface of the stator is aligned with the center of the mounting surface of the drive unit. The angle measuring device according to claim 1, characterized in that a pressing means for pressing against the alignment ring is provided. 3. The pressing means is formed of a spring that hugs the centering ring. The angle measuring device according to claim 2, wherein: 4. The pressing means is formed by a sinking screw for attaching the stator to the mounting surface of the drive unit, and the sinking screw is sunk into the inside of the stator. 3. The angle measuring device according to claim 2, wherein the angle measuring device is slightly misplaced due to the arrangement of the screw holes in the mounting surface.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3228507A DE3228507C2 (en) | 1982-07-30 | 1982-07-30 | Angle measuring device |
| DE3228507.8 | 1982-07-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5994008A JPS5994008A (en) | 1984-05-30 |
| JPH0352810B2 true JPH0352810B2 (en) | 1991-08-13 |
Family
ID=6169726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58137916A Granted JPS5994008A (en) | 1982-07-30 | 1983-07-29 | Angle meter |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4512184A (en) |
| EP (1) | EP0100828B1 (en) |
| JP (1) | JPS5994008A (en) |
| AT (1) | ATE16730T1 (en) |
| DE (2) | DE3228507C2 (en) |
Families Citing this family (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59153120A (en) * | 1983-02-21 | 1984-09-01 | Alps Electric Co Ltd | Optical type rotary encoder |
| JPS60218028A (en) * | 1984-04-14 | 1985-10-31 | Fanuc Ltd | Encoder |
| JPS6148719A (en) * | 1984-08-16 | 1986-03-10 | Fanuc Ltd | Optical rotary encoder |
| DE3437515C2 (en) * | 1984-10-12 | 1986-08-14 | Dr. Johannes Heidenhain Gmbh, 8225 Traunreut | Position measuring device |
| JPH0672785B2 (en) * | 1984-10-19 | 1994-09-14 | ファナック株式会社 | Optical rotary encoder |
| IT1184495B (en) * | 1985-04-26 | 1987-10-28 | Michele Merlo | INCORRECTED VERNIER OPTICAL CODER (ENCODER) |
| US4712005A (en) * | 1985-12-19 | 1987-12-08 | Kollmorgen Technologies Corporation | Floating mask encoder with assembly spacer |
| DE3908932A1 (en) * | 1988-05-25 | 1989-12-07 | Heidenhain Gmbh Dr Johannes | ANGLE MEASURING DEVICE |
| US5048384A (en) * | 1990-04-30 | 1991-09-17 | Carlen Controls, Inc. | Centering device |
| US5057684A (en) * | 1990-08-30 | 1991-10-15 | Robbins & Myers/Electro-Craft, A Wholly Owned Sub. Of Robbins & Myers, Inc. | Unitary aligning and gapping apparatus for modular optical shaft encoder |
| DE4322744C2 (en) * | 1993-07-08 | 1998-08-27 | Baumueller Nuernberg Gmbh | Electrical drive system and positioning method for the synchronous adjustment of several rotatable and / or pivotable functional parts in devices and machines, drive arrangement with an angular position encoder and printing machine |
| ES2183823T5 (en) † | 1994-07-23 | 2010-04-15 | Baumuller Nurnberg Gmbh | ELECTRIC DRIVING SYSTEM, ESPECIALLY FOR PRINTING MACHINES. |
| US5668455A (en) * | 1994-09-16 | 1997-09-16 | Gotz; Fritz Rainer | Angle encoder for rotating equipment |
| DE19629585C2 (en) * | 1995-09-06 | 1998-12-10 | Heidenhain Gmbh Dr Johannes | Angle measuring device |
| DE19907326B4 (en) | 1999-02-20 | 2013-04-04 | Dr. Johannes Heidenhain Gmbh | angle measurement |
| DE10046818B4 (en) | 2000-09-20 | 2008-02-07 | Dr. Johannes Heidenhain Gmbh | Position measuring device |
| DE10137014B4 (en) * | 2001-07-30 | 2010-04-08 | Dr. Johannes Heidenhain Gmbh | Position measuring device |
| DE102004007445A1 (en) * | 2004-02-13 | 2005-09-01 | Dr. Johannes Heidenhain Gmbh | Angle measuring device |
| US7205530B2 (en) * | 2005-05-16 | 2007-04-17 | Renco Encoders, Inc. | Encoder device and apparatus for gapping and centering an encoder device |
| US7939795B2 (en) * | 2008-05-13 | 2011-05-10 | Heidenhain Corporation | Encoder device and gapping and centering device for an encoder device |
| US7601948B1 (en) | 2008-07-14 | 2009-10-13 | Renco Encoders, Inc. | Encoder device and alignment device for an encoder device |
| CN109000588B (en) * | 2018-05-25 | 2020-08-25 | 宿州学院 | Measuring device for furniture design and manufacture |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5221880U (en) * | 1975-08-05 | 1977-02-16 | ||
| JPS5228748U (en) * | 1975-08-22 | 1977-02-28 | ||
| JPS5414945U (en) * | 1977-07-04 | 1979-01-31 | ||
| JPS574823B2 (en) * | 1978-02-06 | 1982-01-27 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1476405A (en) * | 1974-06-07 | 1977-06-16 | Vactoric Control Equip | Optical encoder |
| JPS6141301Y2 (en) * | 1980-06-10 | 1986-11-25 | ||
| US4345149A (en) * | 1980-09-08 | 1982-08-17 | Blaser Anton J | Disc-shaped centering fixture for optical encoders |
| JPS57174300A (en) * | 1981-04-21 | 1982-10-26 | Asahi Seimitsu Kk | Digital display type vernier device in universal parallel rule |
-
1982
- 1982-07-30 DE DE3228507A patent/DE3228507C2/en not_active Expired
-
1983
- 1983-05-26 DE DE8383105202T patent/DE3361341D1/en not_active Expired
- 1983-05-26 EP EP83105202A patent/EP0100828B1/en not_active Expired
- 1983-05-26 AT AT83105202T patent/ATE16730T1/en not_active IP Right Cessation
- 1983-07-26 US US06/517,349 patent/US4512184A/en not_active Expired - Lifetime
- 1983-07-29 JP JP58137916A patent/JPS5994008A/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5221880U (en) * | 1975-08-05 | 1977-02-16 | ||
| JPS5228748U (en) * | 1975-08-22 | 1977-02-28 | ||
| JPS5414945U (en) * | 1977-07-04 | 1979-01-31 | ||
| JPS574823B2 (en) * | 1978-02-06 | 1982-01-27 |
Also Published As
| Publication number | Publication date |
|---|---|
| US4512184A (en) | 1985-04-23 |
| DE3361341D1 (en) | 1986-01-09 |
| DE3228507C2 (en) | 1986-11-13 |
| JPS5994008A (en) | 1984-05-30 |
| DE3228507A1 (en) | 1984-02-02 |
| ATE16730T1 (en) | 1985-12-15 |
| EP0100828B1 (en) | 1985-11-27 |
| EP0100828A1 (en) | 1984-02-22 |
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